Shiro and Kuroh are not the only ones who go to high school. Instead, the members of Homra (including their leader Suoh) and the members of Scepter 4 attend school together. The students are sometimes lax, but at other times, they are hot-headed.

From Fantasyshrine:

V.01 - Single Mind
S&D Securities -- the 4th Guard gathers suave and intelligent professionals who are highly trained in combat. However, a reckless youth appears and is hell-bent on sticking to the intelligence manager, Taki Keiichi. Due to a previous assignment, Taki caught the attention of the yakuza and is now being pursued by this persistent rookie to join.

"I'm not going away until you either come with me or kill me!"

Amused by his earnest request, Taki offers for Yuuki to stay with him under the guise of his personal bodyguard. But Taki starts to develop a desire to oppress the ever obedient Yuuki...

V.02 - Second Wind
Kogami Shinobu is the number-one cool beauty of the Intelligence Department in the S&D Securities- the Fourth Guard, where suave and intelligent specialists gather in abundance. However, he doesn't seem to care for his partner, the laidback bodyguard Miharu "Shin" Shinnosuke’s pursuit. Why is it that Kogami stubbornly refuses to mix business with pleasure, as if he's scared of it? Then suddenly, Shin seems to have shifted his attention to the new charge he’s supposed to be protecting! What in the world will happen to their partnership--!?

V.03 - Third Party

V.04 - Four Card(s)

V.05 - Five Minutes

V.06 - Zero Hour

V.07 - Sixth Sigma

V.08 - Seventh Heaven

V.09 - Eight Knot(s)

V.10 - Nine Lives

V.11 - Ten Gong

Welcome to the Lunar Eclipse Circus!

Meet Kageno, the super dull, glasses wearing, short first year high school girl. She has no friends and envies people who are enjoying their youth. Meet Mitsunaga Youta, the most popular handsome guy in school. Girls constantly confess their love to him, but he has no plans of dating anyone. After a string of events, he decides to ask Kageno to be his fake girlfriend for a month in order to stop the girls from confessing to him in exchange for his friendship. How will Kageno face all the ordeals that are about to come? This is the start of a love comedy between the school idol and the negative girl.

Yurika attends a girls-only college with a long tradition of lesbian love, and according to rumors, she's been with over half of the 10,000 girls who attend the school! This rumor is mortifying to Yurika, and seriously damages her chances of ever getting a boyfriend. The truth is, for some reason, she's just completely irresistible to women, even women who claim to be straight. One day, Yurika gets a call from her Dad, letting her know that his company is bankrupt. He suggests that she get by on her charms, since he can no longer help her with money. Is it time for Yurika to actually start taking advantage of her unwanted persona as a masterful lesbian lover?

In the 27th year of an alternate Meiji era (where the kanji used for "Meiji" mean "maze"). A self-proclaimed samurai named Naguri travels from the countryside to the capital Asakusa to achieve his dream, and he moves into a share house. In Asakusa spirits, samurai, and technology coexist.

Shunpei's childhood friend, Ayari, keeps turning into different forms of monsters.

Made by the author of I Don't Know What My Little Sister's Friend Is Thinking!

Author's Twitter: https://twitter.com/rayrei1414

A collection of short stories from Kaneko Atsushi

Yamada is the plant appointee; tending the school's garden of flowers on her own. She isn't the slightest bit athletic, she's actually quite clumsy. However, that doesn't stop her from having feelings for the star athlete in the class next-door, Kase-san. Slightly shy, Yamada is reluctant about her feelings for the enthusiastic Kase-san. Slowly but surely, the pair are helping each other to grow in confidence for both themselves and their budding relationship, each blush and brush of the hand at a time.

Seven Seas Releases:
Vol. 1 - Kase-san and Morning Glory
Vol. 2 - Kase-san and Bento
Vol. 3 - Kase-san and Shortcake
Vol. 4 - Kase-san and Apron

Takasugi Koyuki who is 180cm, gloomy and shy is secretly fond of Komaeda Masakatsu, who is short in stature but has a big heart. Will the distance between the two obvious mismatch be shortened---?!

An unknown, tall-hatted noble. A lovely and beautiful high-class lady. A competitive and energetic high school girl. These three mismatched people each aim for one place, each with different reasons. Who is the man who waits for them there? Kôji Kumeta writes a new world filled with glee and wonder!

Due to a request, the genius Dr. Sumiko developed an「AI boyfriend」.
Sumiko is pleased with her success, but the AI boyfriend who started will recognize her as「girlfriend」...!?
Initially, Sumiko rejected the AI boyfriend.
However, being subject to his constant love gradually leads her to acknowledge him...
A hot topic on Twitter and pixiv! A love comedy between a handsome AI and an unpopular woman begins ♡

Kagami Kouma loved to collect different kinds of objects and collections ever since he was a kid. One day, he was transported to another world by a girl who claims to be the daughter of the demon lord Lucifer! She needs his talent of collecting things to help her collect the 72 treasures in order to become as powerful as her father. What danger will Kouma face in his journey?

Kayano Meguru has a bit of a brother complex. Her love for her brother is so strong that she has removed the idea of any romance with any other male other than her brother from her mind.

One day she passes out and awakens 2 years in the future! To make things even more confusing for her, she is dating someone other than her beloved brother!

Kubote Rio is a young girl who was proclaimed a violin genius. It looked like a future promised as a performer, but when she lost sight of her goal and got bogged down and frightened on the stage, she escaped to her mother's countryside… The boy Rinne met in the area, Ten Asakura, had a genius "ear." A girl who lost sight of a sound and a boy who seeks a sound. The meeting of two people makes harmony in the sky high country town! Authentic string story!

Momochi Himari, despite being an orphan, unexpectedly inherits an old house. Despite warnings she receives on the Momochi House being haunted, she decides to go live there anyway. She soon learns that the house is already occupied by three somewhat strange men, Aoi, Yukari and Ise, all of whom may or may not possess supernatural abilities to combat evil spirits. What happens when stubborn Himari decides to stay, despite being told to leave?

Follows the daily life of a professor and a robot girl in a post-apocalyptic setting.

She was a tomboy... big emphasis on "WAS".

1-page illustrations created and posted by @macharge on twitter

Artist’s Pixiv: https://www.pixiv.net/member.php?id=614227
Artist’s Twitter: https://twitter.com/macharge

"Sex" made more familiar!

Health and physical education teacher Tsuji, who has doubts about modern sex education, attempts boldly to teach sex education to an audience of, among others, a girl who has a girlfriend, a girl who like BL, and a girl who simply likes cats.
"What is safe sex between girls?" "Positive masturbation?" "Why do sugar gliders (Petaurus breviceps) have vaginas?"
Beyond dirty jokes, but less than gravely serious, a sex education comedy!
Bright sex education begins with a heretical female teacher and female high schoolers!